News tagged with heart
Viral Vectors delivery new calcium pumps for ailing hearts
(Medical Xpress)—A fresh round of trials to evaluate gene therapy for the heart is set to begin in a couple of weeks. The British Heart Foundation will be sponsoring the study, which seeks to replace defective ...
Medical research
May 01, 2013 |
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Missing link in Parkinson's disease found
Researchers at Washington University School of Medicine in St. Louis have described a missing link in understanding how damage to the body's cellular power plants leads to Parkinson's disease and, perhaps ...
Medical research
Apr 25, 2013 |
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Deep brain stimulation: A fix when the drugs don't work
Neurological disorders can have a devastating impact on the lives of sufferers and their families.
Neuroscience
May 17, 2013 |
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Security risks found in sensors for heart devices, consumer electronics
The type of sensors that pick up the rhythm of a beating heart in implanted cardiac defibrillators and pacemakers are vulnerable to tampering, according to a new study conducted in controlled laboratory conditions.
Cardiology
May 16, 2013 |
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Aspirin not always best treatment for many individuals
(Medical Xpress)—An aspirin a day may not always keep heart disease away, say two University of Florida cardiologists. But a new algorithm they have developed outlines factors physicians should weigh as ...
Medications
May 16, 2013 |
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Jekyll into Hyde: Breathing auto emissions turns HDL cholesterol from 'good' to 'bad'
Academic researchers have found that breathing motor vehicle emissions triggers a change in high-density lipoprotein (HDL) cholesterol, altering its cardiovascular protective qualities so that it actually contributes to clogged ...
Cardiology
May 15, 2013 |
4 / 5 (4) |
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Getting fit in middle age can reduce heart failure risk
Middle aged and out of shape? It's not too late to get fit—and reduce your risk for heart failure, according to research presented at the American Heart Association's Quality of Care and Outcomes Research Scientific Sessions ...
Cardiology
May 15, 2013 |
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Four genes indentified that influence levels of 'bad' cholesterol
Scientists at the Texas Biomedical Research Institute in San Antonio have identified four genes in baboons that influence levels of "bad" cholesterol. This discovery could lead to the development of new drugs to reduce the ...
Medical research
May 15, 2013 |
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The search for an early biomarker to fight atherosclerosis
The Journal of the American Heart Association published the conclusive results from a study directed by Dr. Éric Thorin of the Montreal Heart Institute (MHI), which suggests for the first time that a blood protein contri ...
Cardiology
May 14, 2013 |
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Voluntary reduction has failed as processed and fast food salt levels remain high as ever
The dangerously high salt levels in processed food and fast food remain essentially unchanged, despite numerous calls from public and private health agencies for the food industry to voluntarily reduce sodium ...
Health
May 13, 2013 |
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Research finds spontaneous mutations are major cause of congenital heart disease
Every year, thousands of babies are born with severely malformed hearts, disorders known collectively as congenital heart disease. Many of these defects can be repaired though surgery, but researchers don't understand what ...
Cardiology
May 12, 2013 |
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Researchers identify protein that reverses some effects of aging in mouse hearts
Two Harvard Stem Cell Institute researchers – one a stem cell biologist and one a practicing cardiologist at Brigham and Women's Hospital – have identified a protein in the blood of mice and humans that ...
Medical research
May 09, 2013 |
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Study: Fish oil's work vs. heart attacks limited
Eating fish is good for your heart, but taking fish oil capsules does not help people at high risk of heart problems who are already taking medicines to prevent them, a large study in Italy found.
Cardiology
May 08, 2013 |
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Whole walnuts and their extracted oil improve cardiovascular disease risk
(Medical Xpress)—Consumption of whole walnuts or their extracted oil can reduce cardiovascular risk through a mechanism other than simply lowering cholesterol, according to a team of Penn State, Tufts University ...
Health
May 08, 2013 |
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Differences between 'marathon mice' and 'couch potato mice' reveal key to muscle fitness
Researchers discovered that small pieces of genetic material called microRNAs link the two defining characteristics of fit muscles: the ability to burn sugar and fat and the ability to switch between slow- ...
Medical research
May 08, 2013 |
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Heart
The heart is a muscular organ in all vertebrates responsible for pumping blood through the blood vessels by repeated, rhythmic contractions, or a similar structure in annelids, mollusks, and arthropods. The term cardiac (as in cardiology) means "related to the heart" and comes from the Greek καρδιά, kardia, for "heart."
The heart of a vertebrate is composed of cardiac muscle, an involuntary striated muscle tissue which is found only within this organ. The average human heart, beating at 72 beats per minute, will beat approximately 2.5 billion times during a lifetime (about 66 years). It weighs on average 250 g to 300 g in females and 300 g to 350 g in males.
For more information about Heart, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
